/**
 * Copyright (c) 2024 Huawei Technologies Co., Ltd.
 * This file is a part of the CANN Open Software.
 * Licensed under CANN Open Software License Agreement Version 1.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */

#include "kernel_operator.h"
#include "lib/matmul_intf.h"
#include "../kernel_impl/batch_matmul_custom_impl.h"

using namespace matmul;

constexpr int32_t FULL_L1_SIZE = 512 * 1024;
constexpr int32_t FULL_L0C_SIZE = 128 * 1024;

__aicore__ inline void CopyTiling(TCubeTiling* tiling, GM_ADDR tilingGM)
{
    uint32_t* ptr = reinterpret_cast<uint32_t*>(tiling);
    auto tiling32 = reinterpret_cast<__gm__ uint32_t*>(tilingGM);

    for (int i = 0; i < sizeof(TCubeTiling) / sizeof(uint32_t); i++, ptr++) {
      *ptr = *(tiling32 + i);
    }
    return;
}

extern "C" __global__ __aicore__ void batch_matmul_custom(GM_ADDR a, GM_ADDR b, GM_ADDR c, GM_ADDR workspace,
                                                        GM_ADDR tilingGm)
{
    TCubeTiling tiling;
    CopyTiling(&tiling, tilingGm);
    typedef MatmulType<TPosition::GM, CubeFormat::ND, half, false, LayoutMode::BSNGD> A_TYPE;
    typedef MatmulType<TPosition::GM, CubeFormat::ND, half, true, LayoutMode::BSNGD> B_TYPE;
    typedef MatmulType<TPosition::GM, CubeFormat::ND, float, false, LayoutMode::BSNGD> C_TYPE;
    typedef MatmulType<TPosition::GM, CubeFormat::ND, float> BIAS_TYPE;
    BatchMatmulKernel<A_TYPE, B_TYPE, C_TYPE, BIAS_TYPE> batchMatmulKernel;
    AscendC::TPipe pipe;
    tiling.shareMode = 0;             // 0, share mode
    tiling.shareL1Size = FULL_L1_SIZE;  // full L1
    tiling.shareL0CSize = FULL_L0C_SIZE; // full L0C
    tiling.shareUbSize = 0;           // no UB
    REGIST_MATMUL_OBJ(&pipe, GetSysWorkSpacePtr(), batchMatmulKernel.matmulObj, &tiling);
    batchMatmulKernel.Init(a, b, nullptr, c, workspace, tiling);
    batchMatmulKernel.Process<false>(&pipe, 3, 3);
}

#ifndef ASCENDC_CPU_DEBUG
void batch_matmul_custom_do(uint32_t blockDim, void* stream, GM_ADDR a, GM_ADDR b,
                         GM_ADDR c, GM_ADDR workspace, GM_ADDR tilingGm)
{
    batch_matmul_custom<<<blockDim, nullptr, stream>>>(a, b, c, workspace, tilingGm);
}
#endif